How far is Portsmouth, RI from Greenville, RI?

The driving distance from Portsmouth, RI to Greenville, RI is about 39.9 miles (64.2 km), with a travel time of about 00h 47m by car.

  • The straight-line flight distance is about 24.2 miles (39 km).
  • For a round trip, plan for roughly 01h 34m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Trip Tools

Reverse, save, or send this route

This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.

Reverse Route
Quick Snapshot
Road
39.89 mi
00h 47m
Flight
24.23 mi
38.99 km direct

This route works well as a day trip with time at the destination.

Learn Distance

Choose another destination from Portsmouth.

Flight Distance

Direct air line
24.23 mi
Kilometers
38.99 km
Flight Time
00h 02m

Driving Distance

Road route
39.89 mi
Kilometers
64.19 km
Drive Time
00h 47m

Gas Cost Calculator

Leave and Arrive Planner

Pick a departure time to see your estimated arrival and same-day return window.

Drive time stays fixed at 00h 47m.

Arrival Snapshot
Arrive in Greenville
Sun, Apr 19, 6:35 AM EDT
Return by in Portsmouth
Sun, Apr 19, 7:23 AM EDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Portsmouth
2026-04-19T05:48
Arrive Greenville
Sun, Apr 19, 6:35 AM EDT
Route Timing
00h 47m
One way by road
Best Departure Window
8:00 AM to 10:00 AM EDT
Aim for a morning departure
Arrive between
8:47 AM to 10:47 AM EDT

A morning start gives you useful time at the destination and keeps the return out of the late evening.

Leave by
4:56 PM EDT
Keeps a same-day return open with about 03h 00m at the destination.
Back in Portsmouth
9:30 PM EDT
Morning start is best

You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.

Halfway Point

A useful midpoint for breaks, coffee, or meeting in the middle.

Mid-route stop
Barrington
RI

Village in Cook County and Lake County, Illinois, United States

From Portsmouth
16 mi
00h 23m
To Greenville
23.9 mi
00h 23m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
Portsmouth Weather
RI
Live fallback forecast
53°F
Sunday
Using Warwick as the closest live forecast in the Rhode Island weather hub.

Patchy Fog

Starts
Sun, Apr 19 6:00 AM EDT
Wind
8 to 15 mph SW
Destination
61°F
Sunday

Chance Rain Showers

Starts
Sun, Apr 19 6:00 AM EDT
Wind
6 to 12 mph SW

Driving Route Map

The map below follows the saved road route between Portsmouth and Greenville.

Turn-by-Turn Driving Directions

Step-by-step road directions between Portsmouth and Greenville.

  1. 1

    Start on the route

    26 m · 11 sec

  2. 2

    Turn left onto Freeborn Street

    131 m · 22 sec · Freeborn Street

  3. 3

    Turn left onto East Main Road

    1.8 mi · 3 min · East Main Road

  4. 4

    Turn slight left onto Boyds Lane

    1.2 km · 1 min · Boyds Lane

  5. 5

    Continue on Mount Hope Bridge

    1.1 mi · 2 min · Mount Hope Bridge

  6. 6

    Continue on Ferry Road

    944 ft · 16 sec · Ferry Road

  7. 7

    Keep slight right to continue on Metacom Avenue

    5.7 mi · 9 min · Metacom Avenue

  8. 8

    Continue on Kickemuit Road

    1328 ft · 32 sec · Kickemuit Road

  9. 9

    Continue on Market Street

    2.6 mi · 4 min · Market Street

  10. 10

    Continue on James Reynolds Road

    2581 ft · 46 sec · James Reynolds Road

  11. 11

    Take the ramp slight right toward I 195 West: Providence Rhode Island

    1886 ft · 46 sec

  12. 12

    Merge slight left

    8.2 mi · 11 min

  13. 13

    Keep slight right to continue on I 95 North, US 6 West: Boston Massachusetts

    669 ft · 16 sec

  14. 14

    Keep slight left to continue on I 95 North, US 6 West: Boston Massachusetts

    1.6 km · 2 min

  15. 15

    Keep slight left

    709 ft · 12 sec

  16. 16

    Keep slight right to continue on RI 146 North: State Offices

    1.1 km · 45 sec

  17. 17

    Continue on Old Louisquisset Pike

    1.2 mi · 1 min · Old Louisquisset Pike

  18. 18

    Continue on OldLouisquisset Pike

    829 ft · 10 sec · OldLouisquisset Pike

  19. 19

    Take the exit slight right toward Branch Avenue

    681 ft · 23 sec

  20. 20

    Turn left onto Branch Avenue

    1.4 km · 2 min · Branch Avenue

  21. 21

    Turn slight right onto Douglas Avenue

    1.3 km · 1 min · Douglas Avenue

  22. 22

    Turn left onto Mineral Spring Avenue

    1.6 mi · 3 min · Mineral Spring Avenue

  23. 23

    Turn right onto Centerdale Bypass

    1121 ft · 21 sec · Centerdale Bypass

  24. 24

    Turn right onto Putnam Pike

    1.4 mi · 2 min · Putnam Pike

  25. 25

    Continue on Putnam Pike

    2.2 mi · 3 min · Putnam Pike

  26. 26

    Arrive at your destination

    0 m · 1 sec · Putnam Pike

Car Route Details

A richer read on the saved driving route between Portsmouth and Greenville.

OSRM road route
Drive Character

Turn-heavy local drive

The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.

Directions
26 steps
8 turns on the saved route
Ramps & Exits
3
1 merges, 2 ramps or exits
Navigation Density
65.2 / 100 mi
Decision points by distance
Main Roads
I 195 West
8.52 mi · 21%
Metacom Avenue
5.71 mi · 14%
Putnam Pike
3.59 mi · 9%
Market Street
2.58 mi · 6%
East Main Road
1.78 mi · 4%
Mineral Spring Avenue
1.6 mi · 4%
Longest Stretch

I 195 West

Merge slight left

8.16 mi · 00h 11m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

A comfortable day-trip route

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

Drive Time
00h 47m
Day trip friendly
Same-Day Return
01h 34m
Round-trip wheel time
Road vs Air
+15.7 mi
24.2 mi direct line
Halfway Stop
Barrington
00h 23m from Portsmouth
Leave By
4:56 PM EDT
Morning start is best
Weather Watch

Patchy Fog leaving Portsmouth and Chance Rain Showers near Greenville.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from Portsmouth to Greenville?

The road trip is about 39.9 miles (64.2 km) and usually takes 00h 47m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.

What is the halfway point on this route?

Barrington is a useful midpoint, sitting about 16 miles from Portsmouth and 23.9 miles from Greenville.

How much longer is the road route than the straight-line distance?

The direct path is about 24.2 miles (39 km), while the road route adds roughly 15.7 extra miles because roads do not follow the straight air line.

When is the best time to leave for this route?

A good departure window is usually 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 4:56 PM EDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $5.56 one way or $11.12 round trip. Estimated CO2 is about 12.5 kg one way.

What should you check before leaving?

Before you leave, expect Patchy Fog around Portsmouth and Chance Rain Showers near Greenville.

Stop Ideas Near Barrington

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
Local place coverage is thin around Barrington, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Barrington.

RAIL

Providence station

13 mi away
100 Gaspee Street
RAIL

Kingston station

35 mi away
1 Railroad Avenue
RAIL

Route 128 station

54 mi away
50 University Ave
RAIL

Westerly station

59 mi away
14 Railroad Avenue

Flight Path Map

This map shows the direct air route between Portsmouth and Greenville. Straight-line distance: 24.23 mi (38.99 km).

Portsmouth

#1 Portsmouth

Town in Newport County, Rhode Island, USA

Population17,108
Coordinates41.6023200, -71.2503300
Altitude43
CountryUnited States
Photo coming soon

#2 Greenville

Greenville is a place in Rhode Island, United States.

Population0
Coordinates41.8712100, -71.5520100
Altitude87
CountryUnited States
Start: Freeborn Street (-71.250436, 41.602105)
End: Putnam Pike (-71.552005, 41.871225)

Estimated Travel Time

Distance: 64 km by road

SpeedTime
30 mph (48.3 km/h)01h 19m
40 mph (64.37 km/h)00h 59m
50 mph (80.47 km/h)00h 47m
60 mph (96.56 km/h)00h 39m
70 mph (112.65 km/h)00h 34m
80 mph (129 km/h)00h 29m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
1.41 gal
5.33 L · about $5.56
Round trip
$11.12
2.82 gal · 10.66 L
Estimated CO2
12.5 kg one way
Round trip: 25.1 kg / 55 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.95 $5.56 $11.12
Mid-grade $4.46 $6.28 $12.57
Premium $4.86 $6.85 $13.70
Diesel $6.00 $8.46 $16.91

Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.

Prices in Rhode Island · Apr 19, 2026

There is no time difference between Portsmouth and Greenville. The current time is 05:48:25.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.